Ameresco & Envision Energy chosen by Atlantic Green for 624MWh UK BESS project

May 24, 2024

Cleantech integrator Ameresco and Envision Energy have been chosen by Atlantic Green to build the Cellarhead project, a 300MW / 624MWh battery energy storage project (BESS) in the UK.

The Cellarhead BESS project in Staffordshire will be connected to National Grid’s Cellarhead sub-station.

Construction is anticipated to commence on site this year with connection to the electricity grid expected at the end of 2026.

As part of the BESS project Ameresco entered into an EPC and O&M contract covering battery supply, balance of plant, warranty, and availability guarantees. The EPC full wrap price is around $249 million (£196.5 million). Envision Energy will provide the BESS and associated services, as well as the equipment warranties.

Following completion, Atlantic Green will own and operate the BESS as an energy storage asset.

Atlantic Green was established in 2021 as a joint venture between Nofar Energy and Interland Group to invest in, develop, and operate grid-scale standalone battery energy storage systems across the UK.

“We believe that a continuous development of battery energy storage is a vital step in the UK’s journey to achieving net-zero carbon emissions, and we are excited to team up with Ameresco to bring this vision to life,” said Nick Bradford, managing director of Atlantic Green. “Since our founding, Atlantic Green has consistently prioritised finding strategic ways to leverage our battery storage assets with the wider community and we are eager to answer the rising demand for battery storage with this new project with such a level of energy capacity, to really make the impact on the UK electricity system that is much needed.”

Mark Apsey, senior vice president of UK operations at Ameresco, said: “We’re excited to announce our collaboration with Atlantic Green to construct one of the largest battery energy storage projects in the United Kingdom. Energy storage is one of the key technologies required to achieve the UK’s net zero targets. Atlantic Green’s strong company leadership and robust track record of developing similar projects makes them an excellent partner in this endeavour. Together, Ameresco and Atlantic Green will help support the UK’s progress towards increased power autonomy and achieving net-zero carbon emissions by 2050.”

Kane Xu, global VP, Envision Energy, added: “This project exemplifies our commitment to pushing the boundaries of battery storage technology, a cornerstone of sustainable energy systems. Partnering with Atlantic Green and Ameresco allows us to demonstrate the pivotal role that advanced battery solutions play in enhancing energy security and enabling a seamless transition to renewable energy sources. We are proud to contribute our cutting-edge technology to this landmark UK initiative.”